Method And Arrangement For Vortex Reduction In A Metal Making Process

An arrangement for a metal making process, the arrangement comprising:

• a metallurgical vessel for accommodating molten metal, the metallurgical vessel having a tapping hole for bottom tapping the molten metal from the metallurgical vessel, and
• an electromagnetic stirrer arranged to generate a time-varying electromagnetic field in molten metal arranged in the metallurgical vessel,
• wherein the electromagnetic stirrer comprises a coil arrangement, a frequency converter for operating the coil arrangement and a control unit for controlling the frequency converter such that the electromagnetic stirrer generates a time-varying electromagnetic field which is applied to the metallurgical vessel and which generates a time-varying electromagnetic field in the molten metal during tapping of the molten metal from the metallurgical vessel to thereby generate a flow of the molten metal in the metallurgical vessel, wherein the time-varying electromagnetic field is such that it provides a forced convection of the molten metal in the metallurgical vessel such that the flow constantly moves vortices away from a tapping hole region during the tapping to thereby prevent accumulation of the vortices for vortex formation over the tapping hole.